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3 years ago

How are new molecules of dna synthesized in living cells?

Biology

2 answers:

Nuetrik [128]3 years ago

7 0

Answer:

DNA replication.

Explanation:

DNA is the genetic material of all the living organisms except some viruses. Replication may be defined as the the biological process by which two daughter DNA are produced from the parental DNA strand.

Three important process of replication are initiation, elongation and termination. In initiation process, the DNA is unwind and enzymes are placed at the ori site. During elongation, DNA polymerase synthesizes the DNA strand from 5' to 3' direction. A termination site in the DNA results in the termination of DNA replication.

Thus, the new molecules of DNA in living cells are synthesized by DNA replication.

vladimir1956 [14]3 years ago

3 0

It begins with the unzipping of the double helix by helicases. Unzipping forms y-shaped replication forks exposing promoter regions (TATA regions) where the initiator proteins and factor bind to the regions of DNA. A primer also attaches to the region. DNA polymerase then binds to the regions and begins adding DNA nucleotides to the 3’ end of the primer based on the nucleotides on the template strand. Topoisomerase continues to unwind the DNA as the polymerase progresses to the end of replication.

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Answer:

A dialogue between father and son for permission

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2 years ago

What would be the main problem with reproduction if meiosis did not take place to form sex cells?

shtirl [24]

Answer - Fertilization would result in a zygote with twice as many chromosomes as the parents.

Reasoning - Without Proper stable form of stages it would double and the cells wont be able to survive in the next generation.

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3 years ago

Read 2 more answers

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Ksenya-84 [330]

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3 years ago

A type of implant that is surgically inserted in the inferior border of the mandible is a(n) _______________ implant.

erastovalidia [21]

Answer:

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Explanation:

One of the ways to get a missing or broken tooth fixed is through dental implants. It can also be used to fix loose teeth. For this to occur, a tooth root is needed to hold in place the dental prosthesis. Dental implants involve surgically fixing of metal frames (surgical component) into the jawbone beneath the gum to serve as the tooth root. This surgical implant, which now serves as a tooth root, enables the dentist to fix a replacement tooth.

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